As far as I understand it astrobiology is all about how likely or unlikely extraterrestrial life is and where one has the best chances to find it, if at all. So, its very hypothetical.
Second thing to consider: NASA wants funds, so they must consider the news to be good news.
From this I guess they will tell us that the chances for life out there have improved by a percentage margin because.... some worms living on vulcanos in the pacific, some bacteria found in sulfuric acid, more water in the solar system then previously expected....
Stuff like that.
PS: What Botany Bay did not expect is, that the conference will be led by NASA fellow Grumblebum Oxymox.